moved perlin seeddiff settings to respective mods' init.lua's, tweaked default

perlin values to be the same as used in the game's mapgen for spawning dry
shrubs and jungle grass, so that jungle grass mod will replenish the game's
biomes.

flowers/init.lua

@@ -4,6 +4,7 @@ local spawn_delay = 2000 -- 2000
 local spawn_chance = 100 -- 100
 local grow_delay = 1000 -- 1000
 local grow_chance = 10 -- 10
+local flowers_seed_diff = plantlife_seed_diff
 
 local flowers_list = {
 	{ "Rose",		"rose", 		spawn_delay,	10,	spawn_chance	, 10},

junglegrass/init.lua

@@ -4,6 +4,7 @@ local spawn_delay = 2000 -- 2000
 local spawn_chance = 100 -- 100
 local grow_delay = 1000 -- 1000
 local grow_chance = 10 -- 10
+local junglegrass_seed_diff = plantlife_seed_diff
 
 local grasses_list = {
         {"junglegrass:shortest","junglegrass:short" },

plants_lib/init.lua

@@ -12,19 +12,16 @@
 
 -- Various settings - most of these probably won't need to be changed
 
-local plantlife_debug = true  -- ...unless you want the modpack to spam the console ;-)
+plantlife_seed_diff = 329	-- needs to be global so other mods can see it
+
+local plantlife_debug = false  -- ...unless you want the modpack to spam the console ;-)
 
-local plantlife_seed_diff = 123
 local perlin_octaves = 3
-local perlin_persistence = 0.2
+local perlin_persistence = 0.6
-local perlin_scale = 25
+local perlin_scale = 100
 
 local plantlife_limit = 0.1 -- compared against perlin noise.  lower = more abundant
 
-local flowers_seed_diff = plantlife_seed_diff
-local junglegrass_seed_diff = plantlife_seed_diff + 10
-local poisonivy_seed_diff = plantlife_seed_diff + 10
-
 -- Local functions
 
 math.randomseed(os.time())

poinsonivy/init.lua

@@ -4,6 +4,7 @@ local spawn_delay = 2000 -- 2000
 local spawn_chance = 100 -- 100
 local grow_delay = 1000 -- 1000
 local grow_chance = 10 -- 10
+local poisonivy_seed_diff = plantlife_seed_diff + 10
 
 local verticals_list = {
 	"default:dirt",